Thread Guard Rigid Caster - 4" x 2" Duralast Wheel

The Duralast wheel is a protective wheel that wears like steel - is liquid cast to a thickness of approximately 1/2" and chemically bonded onto heavy-duty iron wheel centers. Tread material rates at 90-95 Durometer Shore A and has distinctive green treads that are chemically inert, non-sparking, non-conductive, impervious to ozone, grease and most oils & solvents, and will not mark floors. Temperature range: -50 degrees F to 200 degrees F.